Mesh in Black even after applying a Texture
You have no lighting. A sun lamp can shine some light on your textures, both in texture and rendered view.

The reason the body texture shows up is that it's material has an emit value of 1.0, so it is 'emitting' it's texture as light, while the clothing has o.o emit. Note that the emit value doesn't emit a light that other objects interact with.

You could also enable shadeless.